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Hi,
Could I have a source code of PMP9776 reference design?
http://www.ti.com/tool/pmp9776
e2e.ti.com/.../your-complete-power_2d00_bank-solution
Thanks.
I have alerted the design engineer. He is out of office, so it may be a while before he responds.
//Add CC function at high Temp compared to V2, the CC current to 1A with temperature higher than 30degree
// the current limit is reset at MCU reset or phone diconnection
#define ADC_3V 0x199 // 3*(511/2511)/1.5*1023=0x1A0
#define ADC_3_5V 0x1DD // 3.5*(511/2511)/1.5*1023=0x1E5
#define ADC_3_7V 0x1F9 // 3.7*(511/2511)/1.5*1023=0x201
#define ADC_3_9V 0x214 // 3.9*(511/2511)/1.5*1023=0x21D
#define ADC_45_Deg 0x13B // (0.38*0.47)/(0.47+1)*3*1023/1.5= 0xF8
#define ADC_60_Deg 0x5B
#define ADC_1_6A 0x1A6 // (38.7*1.6)/150*1023=0x1A6
#define ADC_1_3A 0x157 // (38.7*1.3)/150*1023=0x157
void ADC_Routin(void);
void Delay(unsigned int);
void LED_ON(void);
unsigned int ADCValues[4];
#include <msp430.h>
/*
* main.c
*/
int main(void) {
unsigned int STATE=0;
WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer
/*operating frequency of MCU */
DCOCTL = 0; // Select lowest DCOx and MODx settings
BCSCTL1 = CALBC1_1MHZ; // Set DCO
DCOCTL = CALDCO_1MHZ;
BCSCTL3 |= LFXT1S_2; //12KHz Clock for TimerA
/*P1.0~P1.3 as ADC function*/
ADC10CTL1 = (INCH_3 + CONSEQ_1); // A3/A2/A1/A0, single sequence
ADC10AE0 |= 0x0F; // P1.3,2,1.0 ADC10 option select
ADC10CTL0 = (SREF_1 + ADC10SHT_2 + MSC + ADC10ON); //1.5V Reference
ADC10DTC1 = 0x04; // 4 conversions
/*P1.7 as Input I/O for INACT*/
// P1IE |= BIT7; // P1.7 interrupt enabled
P1IES |= BIT7; // P1.7 Hi/lo edge
P1IFG &= ~BIT7; // P1.7 IFG cleared
/*P1.5, P2.0~P2.2, P2.4~2.7 as digital output*/
P1OUT &= ~BIT5; // P1.5 output Low
P1DIR |= BIT5; // Config P1.5 as output pin
P2SEL =0x00;
P2OUT = 0x00; // P2.x low
P2DIR |= 0xFF; // Config P2.x Output function
Delay(10); //1s delay the ADC input need to stable
while(1)
{
switch (STATE)
{
case 0:
P2OUT = 0x00; // Turn off the boost converter
P1OUT &= ~BIT5; // All LED OFF
Delay(40); //4s delay to reduce power consumption
ADC_Routin();
if(ADCValues[3] >= ADC_3_5V && ADCValues[0] > ADC_60_Deg) // the battery voltage higher than 3.5V, the power bank on. Temp lower than 45degree
{
STATE = 1;
LED_ON();
}
break;
case 1:
P2OUT |= BIT4|BIT7; //VCUR high, TPS2514 ON
Delay(1); //100ms Delay
P2OUT |= BIT5; // boost converter on
Delay(1); //100ms delay
ADC_Routin();
if (ADCValues[3] >= ADC_3V && ADCValues[2] > ADCValues[3] && ADCValues[0] > ADC_60_Deg) // VBAT higher than 3V and VOUT higher than VBAT
STATE = 2;
else
{
STATE = 0;
P2OUT = 0x00; // Turn off the boost converter
P1OUT &= ~BIT5; // All LED OFF
}
break;
case 2:
if ((P1IN & 0x80) ==0x80) //INACT is high logic, no mobile connection or small output current
{
Delay(20); //two second delay
P1IFG &= ~BIT7; // P1.7 IFG cleared
Delay(10); //one second delay
if ((P1IN & 0x80) ==0x80) //double check INACT in high logic
{
P2OUT &= 0xF8;
P2OUT |= BIT4; //VCUR=High
P1OUT &= ~BIT5; // All LED OFF
P2OUT &= ~BIT7; // TPS2514 OFF
Delay(1);
P1IE |= BIT7; // P1.7 interrupt enabled
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/interrupt
P2OUT &= ~BIT5; // disable boost converter
P2OUT |= BIT7; //TPS2514 ON,
Delay(4); //400ms delay to discharge the VOUT
P2OUT |= BIT5; // boost converter on
Delay(10); //one second delay for the device to normal operation
}
}
else
{
ADC_Routin();
if (ADCValues[3] >= ADC_3V && ADCValues[2] > ADCValues[3] && ADCValues[0] > ADC_60_Deg)
{
LED_ON();
if ((P2OUT&BIT4) != 0x00) //if VCUR==L, the voltage compensation is disabled
{
if (ADCValues[1] > ADC_1_6A)
P2OUT |= BIT6; //VCOM is high
if (ADCValues[1] < ADC_1_3A)
P2OUT &= ~BIT6; //VCOM is Low
}
else
P2OUT &= ~BIT6; //VCOM is Low
if (ADCValues[0] < ADC_45_Deg)
{
P2OUT &= ~BIT4; //VCUR =0, low current limit
}
}
else
{
STATE = 0;
P2OUT = 0x00; // Turn off the boost converter
P1OUT &= ~BIT5; // All LED OFF
}
}
break;
} //end switch
} //end while
} //end main(void)
// Port 1 interrupt service routine
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(PORT1_VECTOR))) Port_1 (void)
#else
#error Compiler not supported!
#endif
{
LPM3_EXIT;
P1IFG &= ~0x80; // P1.7 IFG cleared
P1IE &= ~BIT7; // P1.7 interrupt disable
__bic_SR_register_on_exit(GIE); //disable GIE
}
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=TIMER0_A0_VECTOR
__interrupt void Timer_A (void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(TIMER0_A0_VECTOR))) Timer_A (void)
#else
#error Compiler not supported!
#endif
{
LPM3_EXIT;
CCTL0 &= ~BIT4; //Interrupt disable
__bic_SR_register_on_exit(GIE); //disable GIE
TACTL = 0x00; //strop timer
}
void ADC_Routin(void)
{
ADC10CTL0 |= BIT5; //ADC Reference ON
Delay(1); //100m delay the ADC input need to stable
ADC10SA = (unsigned int)ADCValues; // ADC Data buffer start Address
ADC10CTL0 |= ENC + ADC10SC; // Sampling and conversion start
while ((ADC10CTL0 & BIT2) == 0);
// Delay_100ms(); // wait until ADC finish
ADC10CTL0 &= ~BIT2; // Clear ADC finished flag
ADC10CTL0 &= ~ENC;
while (ADC10CTL1 & BUSY); // Wait if ADC10 core is active
ADC10CTL0 &= ~BIT5; //ADC Reference ON to reduce power loss
}
void LED_ON(void)
{
if (ADCValues[3] >= ADC_3V && ADCValues[3] < ADC_3_5V)
{
P1OUT |= BIT5; //D4 ON
P2OUT &= ~BIT0; //D1 OFF
P2OUT &= ~BIT1; //D2 OFF
P2OUT &= ~BIT2; //D3 OFF
}
else if (ADCValues[3] >= ADC_3_5V && ADCValues[3] < ADC_3_7V)
{
P1OUT |= BIT5; //D4 ON
P2OUT |= BIT0; //D1 ON
P2OUT &= ~BIT1; //D2 OFF
P2OUT &= ~BIT2; //D3 OFF
}
else if (ADCValues[3] >= ADC_3_7V && ADCValues[3] < ADC_3_9V)
{
P1OUT |= BIT5; //D4 ON
P2OUT |= BIT0; //D1 ON
P2OUT |= BIT1; //D2 ON
P2OUT &= ~BIT2; //D3 OFF
}
else if (ADCValues[3] >= ADC_3_9V)
{
P2OUT |= BIT0|BIT1|BIT2; // All LED ON
P1OUT |= BIT5;
}
else
{
P1OUT &= ~BIT5; //D4 OFF
P2OUT &= ~BIT0; //D1 OFF
P2OUT &= ~BIT1; //D2 OFF
P2OUT &= ~BIT2; //D3 OFF
}
}
void Delay(unsigned int i)
{
unsigned int Number_Cout;
while(i>0)
{
Number_Cout +=1200;
i--;
}
CCTL0 = CCIE; // CCR0 interrupt enabled
CCR0 = Number_Cout; //
TACTL = TASSEL_1 + MC_1; // ACLK, upmode
__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/ interrupt
}
